FurSize / Brand size charts / PetSmart size chart
PetSmart General Dog Harness size chart
This is PetSmart's own general harness chart from its help section. It covers six sizes by girth and prints leash width and a weight guide beside each one. Individual products can differ, so treat it as a starting point.
FIND YOUR SIZE
Type your dog's chest number
Slide or type to see which row fits.
| Size | Chest girth | Weight guide |
|---|---|---|
| XX Small | 8–10 in | 5 lb |
| X Small | 9–15 in | 5–10 lb |
| Small | 13–23 in | 10–25 lb |
| Medium | 18–29 in | 55 lb |
| Large | 22–39 in | 75 lb |
| X Large | 28–44 in | 75+ lb |
The brand prints inches. Centimeters in this guide are converted by FurSize.
Numbers copied from petsmart.com, checked 2026-10-10. Brands change charts, so confirm on the product page before you order. FurSize is not affiliated with PetSmart.
Before you order
PetSmart says girth is measured at the widest part of your dog's chest.
Different brands cut different sizes, so a Medium here is not a Medium elsewhere. Match the chest number every time. The fit check takes a minute once it arrives.
Other brand charts
- Ruffwear Front Range size chart
- Kurgo Tru-Fit size chart
- PetSafe Easy Walk size chart
- Julius-K9 IDC Powerharness size chart
- Rabbitgoo size chart
- Wild One Cushioned size chart
- Mighty Paw Sport size chart
- Non-stop Line Harness size chart
- Lupine Eco Step-In size chart
- Sporn Easy Fit size chart
- Blue-9 Balance size chart
- Embark Adventure size chart
- 2 Hounds Freedom size chart
Questions
What size PetSmart general dog harness should I get?
Match your dog's chest girth to the chart on this page. PetSmart's chart does not give a rule for in-between dogs. The girth ranges overlap, so check the product page of the exact harness you are buying.
Does this chart apply to every harness PetSmart sells?
It is PetSmart's general chart. Individual brands and models on its site can have their own ranges, so the number on the product page wins.
How do I measure chest girth?
Stand your dog and wrap a soft tape around the widest part of the ribcage, just behind the front legs. Keep it snug, with room for two fingers.
Get a number you can reuse.
Type your dog's chest once. See the right size in every brand we cover.
